writing equations
magnesium + oxygen gas → magnesium oxide
2Mg2 + O2 → MgO
magnesium + oxygen gas → magnesium oxide
the magnesium reacted with the fire or heat and lite up super bright making magnesium oxide
A + B → AB
synthesis
Isopropyl alcohol (C3H7OH(l)) + oxygen gas → carbon dioxide + water
2C3H7OH + 9O2(g) → 6CO2(g) + 8H2O(i)
Isopropyl alcohol + oxygen gas → carbon dioxide + water
the alcohol reacted with the fire and it all burned up and left the water behind
A + BC → AB + C
single replacement
Magnesium + hydrochloric acid (HCl(aq)) → magnesium chloride + hydrogen gas
Mg(s) + HCl(aq) → MgCl2(s) + H2(g)
Magnesium + hydrochloric acid → magnesium chloride + hydrogen gas
the magnesium when put in the acid the acid started to burn the magnesium away
AB + CD → AD + CB
double replacement
Mg + O2 → MgO
2Mg + O2 → 2MgO
Lead nitrate + potassium chromate → lead chromate + potassium nitrate
K2CrO4(aq) + Pb(NO3)2(aq) → PbCrO4(s) + 2KNO3(aq)
Lead nitrate + potassium chromate → lead chromate + potassium nitrate
they where both put in the same test tube and they combined to form another element
CH + O2 → CO2 + H2O
combustion
CuOH → Cu2O + H2O
2CuOH → Cu2O + H2O
Zinc metal + hydrogen sulfate → zinc sulfate + hydrogen gas
Zn(s) + H2SO4(aq) → ZnSO4(aq) + H2(g)
Zinc metal + hydrogen sulfate → zinc sulfate + hydrogen gas
the acid reacted with the zinc making gas and zinc sulfate
AB → A + B
decomposition
C2H6 + O2 → CO2 + H2O
2C2H6 + 7O2 → 4CO2 + 6H2O